Abstract: An ink for ink jet recording according to an embodiment is an ink for ink jet recording containing pigment, colloidal silica, amine, and amino acid.

Abstract: An ink for ink jet recording according to an embodiment is an ink for ink jet recording containing pigment, colloidal silica, and amino acid.

Abstract: An ink jet printing ink composition contains a pigment, colloidal silica, trimethylglycine, and water, and in which a content of the colloidal silica is lower than or equal to a content of the trimethylglycine.

Abstract: An aqueous ink jet ink composition contains pigment particles, inorganic oxide particles, and resin particles. The content of the inorganic oxide particles is 1.0% to 10.0% relative to the total mass of the ink composition. The ink composition satisfies the following relationship: D50 of the resin particles ?D50 of the inorganic oxide particles ?D50 of the pigment particles, wherein D50 represents the volume median diameter of the corresponding particles.

Abstract: An ink composition contains pigment particles, inorganic oxide particles, and a lactam solvent. The content of the inorganic oxide particles is 5.0% to 10.0% relative to the total mass of the ink composition. The ink composition satisfies the following relationship: D50 of the pigment particles×0.1?D50 of the inorganic oxide particles?D50 of the pigment particles×1.5, wherein D50 represents the volume median diameter of the corresponding particles.

Abstract: An ink jet recording apparatus includes a line head including a region of nozzles that are formed in an intersecting direction intersecting a transport direction of a recording medium and eject an ink, the region covering a printing region of the recording medium in the intersecting direction, a drying unit that dries the recording medium, a transport unit that transports the recording medium, and a control unit. The ink contains colloidal silica, and the control unit controls the drying unit and the transport unit such that drying of the ink is started within 0.4 second after the ink is attached to the recording medium.

Abstract: An aqueous ink jet composition contains water, a dye composed of at least one of sublimation dyes or at least one of disperse dyes, polyester, and a urethane resin. Preferably, 4.0?XE/XD?300, where XD is the amount of the dye in the aqueous ink jet composition (% by mass), and XE is the amount of the polyester in the aqueous ink jet composition (% by mass).

Abstract: An aqueous ink jet composition contains water, a dye composed of at least one of sublimation dyes or at least one of disperse dyes, and polyester particles, which are particles made of at least one material including polyester. At least a subset of the polyester particles is stained with the dye.

Abstract: An aqueous ink jet composition contains water and particles of a material containing polyester and a dye composed of at least one of sublimation dyes or at least one of disperse dyes. Preferably, the dye is dispersed in the particles.

Abstract: An aqueous ink jet composition contains a dye composed of at least one of sublimation fluorescent dyes or at least one of disperse fluorescent dyes, polyester, and water. The amount of the polyester is 8 times or more and 300 times or less greater than the amount of the dye. Preferably, the amount of the polyester is 5% by mass or more and 35% by mass or less. Preferably, the amount of the dye is 0.05% by mass or more and 1% by mass or less.

Abstract: An ink jet recording apparatus includes a line head including a region of nozzles that are formed in an intersecting direction intersecting a transport direction of a recording medium and eject an ink, the region covering a printing region of the recording medium in the intersecting direction, a drying unit that dries the recording medium, a transport unit that transports the recording medium, and a control unit. The ink contains colloidal silica, and the control unit controls the drying unit and the transport unit such that drying of the ink is started within 0.4 second after the ink is attached to the recording medium.

Abstract: An ink for ink jet recording according to an embodiment is an ink for ink jet recording containing pigment, colloidal silica, and amino acid.